|Vehicles and/or Gadgets||None|
|Occupation||Elemental Master of Sound|
|Residence||New Ninjago City (Formerly)|
Jacob is the Master of Sound and a competitor in the Tournament of Elements. He may be blind but he sees with sound. He wears clothes from the 60's and he has a black Afro. He is voiced by Paul Dobson.
In A Spy of a Spy, he tries to escape Chen's factory, but is caught by Clouse and was implied to be fed to his Anacondrai.
During the credits of The Greatest Fear of them All, a voice over done by Jacob states he was alive and was literally feeding the snake. Jacob states that the snake didn't seem to want to eat, due to the fact it was killed by the Boulder Blaster. This shows that he was left behind on the island.
But in episode Corridor of Elders, he was found back in Ninjago with the other Elemental Masters, making it unknown how he got back without information on elemental dragons.
- In the TV series, Jacob Pevsner is voiced by Paul Dobson.